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公开(公告)号:US5089294A
公开(公告)日:1992-02-18
申请号:US557749
申请日:1990-07-26
申请人: Norman M. Ratcliffe
发明人: Norman M. Ratcliffe
CPC分类号: G01N27/126
摘要: An electrically-conductive polypyrrole film is formed, on a non-conducting substrate, by contacting the substrate with pyrrole and an oxidising agent in a solvent, or with the colloidal polypyrrole that is the reaction product thereof, and removing the substrate while the film is at least substantially transparent, e.g. 50 to 250 nm thick. A gas sensor comprises a chemiresistor prepared by this process.
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公开(公告)号:US06509169B2
公开(公告)日:2003-01-21
申请号:US09903902
申请日:2001-07-12
申请人: Norman M. Ratcliffe , Clive Teare , Christopher Dunn , David C. Cowell , Caroline Penault , Paul Chambers , Murdo M. Black
发明人: Norman M. Ratcliffe , Clive Teare , Christopher Dunn , David C. Cowell , Caroline Penault , Paul Chambers , Murdo M. Black
IPC分类号: C12Q104
CPC分类号: A61B5/4216 , A61B5/097 , G01N27/12 , G01N33/0054 , G01N33/497 , Y02A50/246
摘要: A method for detecting Helicobacter pylori in a subject's gastroenteral tract involves measuring a change in resistance of an electronic or electrochemical sensor, notably a polypyrrole film, on exposure to gas from the subject's lungs and/or stomach. Depending on the magnitude of the change (if any) a positive or negative result is indicated visually by electronics means. Two sensors are used, one of which receives a sample of gas which has passed through an amonia-absorbing means to provide a corrected baseline value for the ammonia. The invention also provides apparatus suitable for carrying out the method.
摘要翻译: 用于检测受试者胃肠道中的幽门螺杆菌的方法包括在暴露于来自受试者的肺和/或胃的气体时测量电子或电化学传感器,特别是聚吡咯膜的电阻变化。 根据变化的大小(如果有的话),电子手段可以直观地指出正或负的结果。 使用两个传感器,其中一个接收已经通过氨基酸吸收装置的气体样品,以提供校正的氨的基准值。 本发明还提供适用于实施该方法的设备。
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公开(公告)号:US4876150A
公开(公告)日:1989-10-24
申请号:US022801
申请日:1987-04-20
CPC分类号: B82Y20/00 , G02F1/3618 , H01L37/025 , H01L41/193 , Y10S977/89 , Y10S977/895 , Y10T428/31504
摘要: Langmuir-Blodgett(LB) films of ABAB structure in which the compounds A and B are different and contain complementary groups which result in non-centrosymmetry of the layer plane. Three types of structures are described: (1) in which A and B have similar backbones with complementary chromophore groups, (2) in which A and B have similar backbones with complementary functional groups, and (3) in which A and B have related functional groups but complementary backbones.
摘要翻译: PCT No.PCT / GB86 / 00371 Sec。 371日期1987年4月20日 102(e)1987年4月20日PCT PCT。1986年6月25日PCT公布。 第WO87 / 00347号公报 1987年1月15日.Labmuir-Blodgett(LB)的ABAB结构膜,其中化合物A和B不同,并且含有导致层平面的非中心对称性的互补基团。 描述了三种类型的结构:(1)其中A和B具有相似的主链与互补发色团,(2)其中A和B具有相似的主链与互补的官能团,和(3)其中A和B相关 官能团,但互补骨干。
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